Nikolaos 57 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | E/M VIII |
| PmbZ No. | 5550 |
| Titles | Apo eparchon (office); Chartoularios (office) |
| Seal Sources | Zacos, G. and Veglery, A., Byzantine Lead Seals, vol. I (in 3 parts) (Basel, 1972). |
Nikolaos 57 was apo eparchon and chartoularios; owner of a seal dateable to the first half of the eighth century: Zacos and Veglery 2213. The name and titles read: Νικολάῳ ἀπὸ ἐπάρχων καὶ χαρτουλαρίῳ.
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